Printing telegraph



Oct. 22, 1929. k 3 5 H1LTZ 1,732,601

IIIIIIIIIIIIIII PH Oct. 22, 1929. ca. s. HILTZ PRIN'IING TELEGRAPH Filed Nov. 28, 1927 3 Sheets-Shaet 2 Pataanted Oct. 22, 1929 GEORGE S. IIILTZ, O]? BROO'KLYN, YORK, ASSIGNOR T0 STOCK Q'U'O'IATIQN TELE- GRAPFI GOM'EANY, OF' NEW YORK, N. Y. A CORPORA'IIQN I 1 'EW' YORK IBINTING TELEGRAPI-I Applicatiqn filex1 November 28, 1927. Se1ial 1To. 236084 This invention relates t0 an improvement in printing teiegraphs and pgrticularly 130 that type f appa1a1sinwhich the type wheel 0 1 type carrying apparatus is caused to be actuated in a step-by-step manner b-y current impuls es sent 0Ver the line wirre.

In such apparatus, a number 015 receivers am 011 the 0:ne line and 11168 all c0ntrolled by a single manuzplly opelmted transmitting machlne. In the opgaratidn 0'f such machines, the transmitteu is operated through 21 keyb0211d, the operation 0f the keys 0f this bqard eifecting certain electrical conditions in the cireuits 0f the receivers t0 cause the desired impressions t0 be made 0n a, reco1ding tape -or 0ther suitable type 01' record.

113 is one of the objects of this invention o0 provide a printing telegmph appamt-us 0f such a character Chat alle receiving machine may be readi1y brought to unison with the transmitting apparatus. Heretofore, difficulty has been experienced with alle receivars bcaming out of unison so asn0t t0 print CO1- rectly the matter sent 0ut by the transmitter, anrl 110 avoid this difficulty the ope1ator of the transmittirig machine is required at intervals 10 operata a certain key 011 1 he ke} board 10 bring all 01 che machine-s 011 that line in unison. Th difficulty v viih such 511 arrangemant is hOwever, that the 0pemtor in Ehe 1ush Q1 a busy market may neglect t0 op@rate this key and the result is filmt 2111y machine 0n the .1ina Which is .n0t in unison Will continue in that condittion Until the 0pemtor Charmes 10 again ope1ace fl1e unison key.

By the p1tesentfl1%rangemenia, however, I have provided an arrangement f01 bringing 11118 machines int0 unisoh W11Jh t11e transmitter by die operation 0f ehe period key 011 the keyboard, selecting the pe1iod key deliberately f01 the reason ahnt in telegra@h printers .it the universal cstom to employ the, period key aus the spacer and consequently bhis key is bound t0 be operated at very frequent inte1mls. It is 10 be understood, however, that any othe1 keys 011 the keyboard can be selected if so clesired.

In general, my invention consists in interposing stop in the pajzh 01? the type czuvryin}; appzmatus Whereby when the Peli9d k y.

0n the transmitting machine is operated, this stop mechanisn; Will be movgd t0 type-stopping position qnd Will re.main in this positi011 unti1 Ehe receiver is brought 130 unison, at which time the receivi 11g machine Will automatically rcsume it's normal operation in unis0n Wii1h the transmittgr.

In the accompzmying drg1vvi ngs wherein I hzwe illustrated 0ne embqdiment 0f my in- *C=nivion,

Fig. 1 shows more 01 less diagmmmatically, and in sid.e elevation, a telegraph printing machine of the -receivin gg type With my inventi0n applied thereto,

1*ig. 2 is an end elevation )f th6 machinga of Fig. 1 looking zu]; ehe mgwhine from the f1ont thereoi with parts rer noved so as t0 show the deails cf the unisoning mechanism;

Fig. 8 is a plan view of the showing of Fig.

Figs. 4, 5 and 6 a11e detail views of the stop mechanism in various positions Which the smne .mziy take duling the operation of the machine, Fig. 1 being a section 011 the line 41 4 0if Fig. 3 and F 7 is 21- wiring diagram.

Rafezring firSt 01 all 150 1*igs. 1 t0 6 indusive, the receiving machine comprises a type Wheel shaft 01 carrier l, carrying type Wheels 2 and 3 as is usua1. Th type shaft 1 is provided W1111 escapemeut mechanism comprisin a coopemting scape whee1 und escapement pawl 5. The pa'w1 5 is vibrated by meanS 01' escapementnmgnets 6 and 7, the operation 0f which Will be desclibed in detail hereinafter, these magnets, howeve1, being provided with acommon armature 8, Which is attached, as illustrated, di1*eotly to tl1e Gscapement pawl 5.

Rigidly secured t0 the type shaft 1 is a stop pin 4, this pin being provided 011 the underside, as vievved in Fig. l, with a shoulder 4.

Below the escapement magnets 6 anal 7 is a unison 01 unisoning magnet 10, the arrnature of which is designated 11, anal is secured'to a short shaft 12 extending transversely of the machine. The shaft 12 also has secured tq it, a short arm 13 110 the oter end of which is attached a spring 14: anchored at 15 t0 a con- Venient pa;yt 013 tlile f12p11160f thge m aohi ne. Th.e

function 01 the spring 14 is to retain tl1e a1- mature 11 in tl1e Position shown in Fig. 1 when the electromagnet 10 is not energized.

The shaft 12 projects through tl1e frame f tl1e machine as shown in Fig. 2', ancl has attacl1ecl to it-s outer end, an arm 16 this unisoning arm extending upwardly vertically of tl1e machine fra1ne to a point adj acent the e11d 01 the stop pin 4 o11 the type shaft 1 heretofore referred to.

The upper e11cl 01: tl1e unisoning arm 16 is laterally extenclecl to provicle a portion 17 extencling toward tl1e escapement mechanism, tl1is lateral extension 17 having pivotecl there- 011 a unison st0p lever 18 lying between the lateral extension 17 and tl1e type shaft 1. The extreme inner end 01 the lateral extension 17 is provicled with an acljustable stop 19 f01 limiting the moven1ent in one direction of the unison stop lever 18. The stop lever 18 pivots at 20 a11d is frictionally held in adjustecl osition.

The type shaft 1 carries a disc 21 wl1ich 1'0- tates with the shaft and under certain con-clitions, as will be hereinafter explained, 1s aclaptecl to be 'engagecl by tl1e member 18. This disc 21 is provided in its peripl1ery wi.tl1 a notch 22 so proportioned am]. so locatecl as t0 prmit tl1e end 01 the member 18t0 swing tl1ereinto under certain conditions as Will be hereinafter explained.

Referr'ing now t0 the wiring diagram of Fig. 7, 23 designates the keyboard 0I" the trans1nitting machine on which, f0r purposes of illustration, I have shown 011ly two keys, t0 Wit, 24 and 25. The key 25 in this instance is assumecl 130 be'the period or spacer key, although, as I hawe mentioned above, tl1is is 110t essential to the operation of n1y invention. 26 designates the sunfiower or stationary commutator 0f tl1e transmitter. 'lhis construcvide d With an insulating sfrip 31 adapted t0 be engagecl alternately by brushes 32a11cl 33.

34 dsignates a brusl1 wl1ich is in constant co11ta;ct wifh tl1e clutch shaft.

As is usual in machines 0f tl1is cl1aracter, the escap3ment mechanisrr1 is operatecl by cl1a11ge in polarity 0f the 1111e c ur1ent, tl1e escapeme nt magnets 6 ancl 7 being .spccially wouncl f0r this purpos'e, so tl1'at the magnet 6011 one polaripywill'attract the arn1at ure 8 in 011e clirectibn and 011 a change in polarity,

tl1e magnet 7 Will attractthis armature in tl1e opp0site direction the'zreby effecting tl1e clesired vibration of:the escapement member an'd pern1it ting an ixitermittent rotation al-' ways 111 the one dirction of the scape Wh6el.

Change in polarity is effected by polar relay P R in conjunctio11 witl1 brusl1es 32 am] 33.

C0111i11g 110W t0 tl1e operation 01 111y 1111- provecl mechanism, it bei11g understoocl, of course, tl1at tl1e sl1aft 27 a11cl tl1c clutcl1 sl1aft are rocating, operation 01 the key 24 Will cl0se a circuit to tl1e clutcl1 relay 35 as follows from tl1e plus sicle 0f tl1e line concluctor 30, 1'111g 37 contact made by operation 0f the key 24, concluctor 38, con1mutator 01 s1111fl011'01 segment 39, trailer 28, Wl1 111 tl1e t1aili11g 011d tl1ereof reacl1es tl1is seg111el1t, brush 40, 0011- cluotor 41, clutcl1 relay t0 ground 42.

The operation 0f the clutch relay efl'ects a closing of tl1e circuit for the clutcl1 111a;rnet 30 fron1 the plus 01 positive side 01' tl1o. 11110. by way 01' co11cluctor 43, a1mature 44 01 tl1e clutcl1 relay, fixecl contact 45, c011 luctor 40, clutch magnet 30 a11d g1ouncl 47. The transmitter sl1aft by tl1e operation of il1e cluhl1 magnet 30 110W Will be hold stationary and tl1e in1press magnet 49 Will efl'ect proper 1111- pression 0f tl1e cl1aracte1, corresponding to tl1e key 24, up011 tl1e tape 01 otl1er rec01cl. lt will be noticecl tl1at tl1e unison magnet above referred t0 111 series witl1 t-l1e escapoment n1agnets 6 ancl 7, a11d tl1e in1press 11121;;- net 49. However, tl1e magnet 10 1s so wouml as 110t to function 011 tl1e con1paratively ligl1t current employecl 111 tl1e operation so far described. Assuming 110W that the 1ece1Ver is 0ut 0f unison with tl1e transn1itter, 111 other worcls, assuming tl1at the cl1aracters being recorcled by tl1e remiver do not correspond to tl1e keys operated 011 tl1e keyboarcl, unison conclitions can be resto1ecl by operation 0f tl1e spacer 01 periocl key 25. The spacer key has been selectecl f'01 tl1is purpose as 1t is necessarily frequently operated in tl1e opc1a tion of tl1e transmitter. \Vl1en tl1e pe1iod 01 spacer key 25 is operated, a ci1cuit Wlll be establishecl for an electromagnetic swifcl1 50 wl1ich may be traced as follows f10111 tl1e plus sicle of tl1e line by way 0f co11ductor 36, 1'i11g 23, tl1rougl1 the contacts of tl1e periocl koy 25, concluctor 51, wincling 0f tl1e magnet 50, C011- cluctor52, sunfiower segn1ent 53, trailer 28, brush 40, co11cluctor 41 wincling of tl1e clutch relay t0 g1ound 42. The electron1agnetic switcl1 Will 110W actuate its a11nature 53 and tl1e resistance 54, wl1ich, prior to tl1is,

was in series witl1 tl1e windings 01? tl1e escape- 1nent magnets 6 and 7,1111p1ess 111ag11et 40 am] magnet 10 is sl1unted, ancl a current 0f relatively l1igl1 a111perage Will flow tl1rougl1 thu magnet 10. The magnet 10 Will 110W actuai 1ts armature 11, causing tl1e a1111 16 t0 110 tl1rown t0 tl1e rigl1t, as viewecl 111 Fi 51- 1 11110 engagen1ent witl1 tl1e clisc 21, and tl1e slop lever 18 to be moved to tl1e position shown in Fig. 5. The continuecl rotation of 010 type shaft 1 Will finally bring tl1e stop pi11 4, carrie'cl by tl1is shaft, 111t0 engagement witl1 tl1e unison stop lever 18, tl1is lever abutting tl1e shoulcler 4. As a consequence, therefore,

the type shaft 1 is held against further rotation ancl alt-hough the operator is still depressing keys 0n the keyboard ancl current is being sent through the machine, the type shaft Will remain stationary until the machine has been brought into unison with t-he transmitter. The notch 22 in the disc 21 nar- 1ied by the type shaft 1 lies abreast of. the stop pin 4 so that the next time the period er spacer key 25 is struck the machines W111 be in unison and the energization of ehe magnet 10 the second time Will cause the unison stop 1ever 18 to move into the notch 22, so that the, stop arm 4 0an clear the same am]. the type shaft 1 resume its rotation. It Will be understood, 0f course, that if at the time the peri0'd key 25 is operated, the receiving machine should be in unison With the transmitter, the st0p lever 18 Will merely move into the n0tch 22, engage the shoulder 4 0n the arm 4 and hence instead of being tilted into the path 0f the stop arm 4 Will be moved 0ut 0f the way 0f this arm entirely, a5 the arm 16 is retracted by the spring 141, and the shaft 1 Will 130 allovved to continue its rotation. In other words, as 10ng as the receiving machine is in unison with the transmitting machine, the operation 0f the period key 25, while it Will actuate the arm 16 Will have 110 effect upon the operation 0f the re ceiving machine the notch 22 ab that time lying abreast of the member 18, the latter does 110t swing 011 its pivot 20 into Position to be engaged by the member 8.

From the foregoing it Will be Seen that means have been provide'd whereby manipulation 0f a key 0n the transmitting machine will effect unisoning 0f the receiving ma chine 01 machines with the transmitter.

It is to be understood that various modifications may be made in the construcuion ab0ve described within the purview 01": my havention.

VVhat I c1aim is:

1. Unisoning mechanism 10r printing telegraph machines comprising in combination, a st0p pin rigidly se0ured t0 and rotatable with the type ssaa1ft 0'f the machine, a pivoted st0p-ler-er adapted When the machine is out 0f unison t0 be moved int0 the path 0f said st0p pin t0 arrest the rotation 0f the type shaft, and means forming a part 0i' said stop pin f0r rcstoring 13110 stop-lever to nonstop ping position when the machine has been br0ught to unison.

2. Unisoning mechanism f01 printing telegraph machines c0mprising in combination, a st0p pin attached t0 t-he type-carrier shaft, a shoulder 0n said pin, a stop-lever, means i0r moving the same into position t0 stop the said pin when th0 machine is 0ut 0f unis0n, und means eooperating with said shoulder f0r moving the stop lever 0ut 0f stopping posb ti0n when the machine has been restored t0 unison.

3. nisoning mechanism fbr printing te1e graph machihes comprising in combination, a disc carried by phe typecarrier shaft, an arm aitaehed t0 said shaft and movable therewith, a stop-lever, and an electromagnet for a0tuating said leverint0 contact with said disc t0 eifect movcment of the lever int0 the path 0f said arm when the machine is out 0'I uni-s0n.

4. Unis0ning machanism for printing telegraph machines comprising in combination, a disc carried by i'h0 tyf e-carrier shaft an arm attached t0 said shaft and extending laterafly with respect thereto, a stoplever, an electromagnet f0r actuating said lever into contact with said disc t0 efi'ect movement of the lever int-0 the'path 01 said arm when the machine is n0t in unison, said dis0 being pro vided with a notch 1'0r receiving said st0p lever Wh@n the machine is in unison t0 permit 0f movement of the stop-lever out 0f stopping posit-i0n.

5. Unisoning mechanism f0r printing tele graph machines comprising in combination, a st0p arm 10r th0 type-carrier shaft, and a stop-lever controlled from a transmitter adapted t0 be actuated electrically into the path cf ehe stop arm when the machine is 0ut 0f unison and t0 be actuated in the reverse direction fr0m the transmitter when the ma" chine has been restored t0 unison.

(S. nisoning mechanism for printing telegraph machines comprising in combination, a stop arm, an electromagnet 10r actuating said stop arm, a stop lever carried by said arm, a st0p adapted t0 cooperate with said stop lever t0 arr0st the movement 0f the type carrie1' shaft, resistance normally in series with said 01 c-tromagnet, and a switch operable fr0m the transmitter :0r shunting Saic1 resistance t0 efie0t 0paraiion 01: said stop-lever and st0p arm when the machine is out 0:E unison and thr0ugh the cooperation 073 said stop arm t0 effect movement 0f the stop-lever oup 0f operative osition when the machine 1s 111 un1s0n.

7. Unisoning mechanism for printing telegraph machines comprising in combination, a unisoning magnet, an armature therefor, a st0p arm attached to said armature, said armature und st0p arm being actuat0d up0n an abnormal current fl0w through said. magnet, a stoppin carried by the type carrier shaft and a piv0ted stop-lever carried by said arm and movable therewith int0 the path 0f said st0ppin when the, machine is 0ut 0f unison.

8. In a printing telegl'aph the combination 0f a scape wheel, an escapement pawl 0011- trolling the movement 0f the same, electr0- magnets f0r vibrating said pawl, a stop attached 110 the shaftcarrying said scape wheel, a stop-lever, a stop arm to Which said lever is pivoted, and a second elcro-magnet operable 0n an abnormal current flovv f0r actuating said stop arm and 1ever, for pivoting said stop-lever inco osition to be engaged by said stop when the machine is out of unison.

9. In a printing telegraph the combination of escapement mechanism, electromagnets for operating saicl mechanism, a stop rigidly attached to the type shaft of t-he machine, a stop-lever, a stop arm t0 Which said lever is pivoted, asecond electromagnet for actuating said stop arm to pivotthe said lever into operative position with'respect to saicl stop when the machine is outof unison, said stop cooperating with the stop-lever when the m21- chine is thereafter brought t0 unison to pivot the stop-lever out of stopping position upon the succeeding energization 0f the second named electroma'gnet.

- This specification signed this 25th day of November, 1927.

GEORGE S. HILTZ. 

